{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process parameter", "material", "process characterization", "application", "manufacturing standard", "machine or equipment"], "input": "A theoretical analysis of the metal transfer behaviour and bead shape formation using positional GMAW are provided ."}
{"process parameter": [], "material": ["metal"], "process characterization": ["bead"], "application": [], "manufacturing standard": [], "machine or equipment": []}